- Genres: Drama and Romance
- Running Time: 124 min.
- Directed by: Cho Sung-hee
- Starring: Song Joong-ki, Park Bo-young
Synopsis: Summoned by an unexpected phone call, an elderly woman visits a cottage she used to live when she was a young girl. She remembers a boy she knew half a century before. Moving to a peaceful village as a child, she discovered a "wolf boy," hiding his large, contorted body in the darkness. She has never been able to purge the images of his wild eyes and animal-like behavior from her mind. She recalls teaching the boy how to wait patiently before a meal, how to wear clothes, how to speak, how to write and other human behaviors so that he could one day live like a normal man. She opened her heart to the innocent boy and he fell in love with the girl, the only person to ever show him affection. However when threatened, he let loose his bestial instincts and became the subject of the villagers' fears. In order to save the life of the boy who risked his to be by her side, she left him with a promise: "Wait for me. I'll come back for you."